Kourtney Kardashian definitely wishes she could lock lips with Justin Bieber when the clock strikes midnight on Dec. 31 but her baby daddy, Scott Disick is getting in the way! Find out why it was Kourt’s decision not to chill with Justin on NYE!

Kourtney Kardashian has decided not to spend New Year’s Eve with Justin Bieber! Believe it or not, Scott Disick is the one keeping Kourtney, 36, from having a fun time with the 21-year-old singer. HollywoodLife.com has learned why Kourtney’s cheating ex has totally ruined her NYE plans.
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“Kourtney still wants to have her hookups with Justin but she has told him that it will not happen on New Year’s Eve,” a source tells us. “She wants all the control back with the hookups because she feels she lost it once it was revealed that they were getting together in the first place. Plus she doesn’t want to be seen with Justin on New Year’s Eve and have it get back to Scott.” We told you that Scott is scheduled to ring in 2016 at 1Oak in Las Vegas and that he’s under contract so he absolutely has to host the party. To hear more about Kourtney and Justin, head over to iTunes and download the latest HollywoodLife podcast for free!

“Kourtney doesn’t want Scott to see [her hanging with Justin] or hear about it and get angry and then start doing something stupid like drinking at his club visit,” the source told us. “She wants that night to go as smoothly as possible. And she believes that she doesn’t need to give Scott any ammunition since she wants to be in control when it comes to them as well.”

We told you that Scott is obligated to do the appearance and he’s getting paid a ton to do it. “He owes [1OAK] an appearance because he cancelled a bunch over the past 5 months,” an insider close to Scott said. “They’ve talked about this appearance and Kourtney is okay with it. It’s undecided if she’ll go, but you better believe he’ll be closely watched regardless.”